Popular New Calculator Checklist Community Guides Product Guides Live Cams My Pool

Results for "filter pressure"

464+ Answers 2 New This Week Free
Pool VideosSee all →
Can Pool Filter Pressure Be Too Low? Diagnosis & Solutions
Filters Medium 1-3 hours 468 👍

Can Pool Filter Pressure Be Too Low? Diagnosis & Solutions

Found out from my wife that our pool filter pressure gauge has been stuck at a weirdly low 6-7 PSI all week and now I can't stop obsessing over it. My 20,000 gallon inground pool has been running fine otherwise, but I'm wondering if this low pressure is something I should be concerned about.

I've heard people talk about high filter pressure being bad, but nobody ever mentions if pressure can be too low. The pump seems to be running, but I'm not sure if the water flow looks as strong as it used to be. Water chemistry has been balanced - chlorine at 2.5 ppm, pH at 7.4, and alkalinity at 110 ppm. Should I be worried about this low pressure reading, and what could be causing it?…more
Can You Pressure Wash Pool Filters? Safe Cleaning Guide
Filters Easy 30 minutes 433 👍

Can You Pressure Wash Pool Filters? Safe Cleaning Guide

Between my pool party this Saturday and getting completely conflicting advice on pressure washing cartridge versus DE filters, I'm running out of time to figure this out.

My current setup includes cartridge filters, but I'm considering switching to either DE or sand filtration depending on cleaning requirements.

What are the specific limitations and recommended procedures for pressure washing each filter type? I want to ensure I'm using appropriate PSI settings and techniques to avoid damaging the filtration media while achieving optimal cleaning results.…more
How to Know If Your Pool Filter Is Dirty: Clear Warning Signs
Filters Easy 15 minutes 264 👍 1

How to Know If Your Pool Filter Is Dirty: Clear Warning Signs

Around the pool supply store staring at rows of filters with absolutely no idea how to tell if mine actually needs replacing. What should I be looking for to know when my filter is getting too dirty and needs attention?

I've heard something about pressure readings, but honestly I'm not sure what numbers I should be watching for or what other warning signs might tell me it's time to clean or replace the filter media.…more
How to Use a Pool Sand Filter: Complete Step-by-Step Guide
Filters Easy 30 minutes 287 👍 1

How to Use a Pool Sand Filter: Complete Step-by-Step Guide

The pool sand filter that worked fine for years started giving me cloudy water last month but now it's completely dead and those expensive pool store fixes aren't working.

Can someone just give me the straight facts on how to actually operate my sand filter? I want to know the basic daily routine, when I should backwash, and how to tell if it's working properly. I'm looking for simple, practical steps I can handle myself without breaking the bank on unnecessary add-ons.…more
How to Clean Pool Filters: Complete DIY Cleaning Guide
Filters Easy 30 minutes 253 👍

How to Clean Pool Filters: Complete DIY Cleaning Guide

Replaced my pool filter cartridge but now I'm standing in the pool supply store aisle staring at all these cleaning products with no clue which ones I actually need. I've got a cartridge filter system and I'm honestly not sure how often I should be cleaning them or what the actual process looks like.

I keep seeing conflicting info online - some people say weekly, others say monthly. And I have no clue if I'm supposed to just spray them off or if there's more involved. Would love some straightforward guidance on timing and the actual steps so I don't mess anything up!…more
How Long to Backwash Pool Sand Filter: Complete Guide
Filters Easy 5 minutes 328 👍

How Long to Backwash Pool Sand Filter: Complete Guide

Since it's 11 PM and my sand filter pressure just spiked to dangerous levels — need to backwash this thing before my pump burns out overnight. Right now I'm dealing with my sand filter - the pressure has gone up quite a bit from when I first cleaned it, and I know it's time to backwash.

But here's my question: how long should I actually run the backwash cycle? I don't want to waste a ton of water (my utility bills are already high enough), but I also want to make sure I'm doing it properly. Is there a specific time I should aim for, or some other way to tell when it's done? I'd rather figure this out myself than pay someone else to do basic maintenance.…more
Pool Filter Balls vs Sand: Complete Replacement Guide
Filters Medium 2-3 hours 1,299 👍 8

Pool Filter Balls vs Sand: Complete Replacement Guide

Noticed my pool filter isn't performing like it used to — can't afford professional service right now, so is switching from sand to filter balls a DIY job under $100? The pool store mentioned they might work better than traditional sand, but I want to make sure before I make the switch.

Are filter balls actually a good replacement for sand in my filter system? I'm curious about things like how well they filter compared to sand, if they're easier to work with, and whether the maintenance routine changes at all. Any guidance would be really helpful!…more
Do DE Pool Filters Need Backwash? Complete Guide + When
Filters Medium 45 minutes 555 👍

Do DE Pool Filters Need Backwash? Complete Guide + When

Around six months ago I moved into a rental with a DE pool filter that I've never dealt with before and I'm completely lost on whether it needs backwashing. My DE pool filter's pressure gauge has shot up from the normal 12 PSI to about 22 PSI over the past month, and I'm wondering if this means I need to backwash the thing. I've been putting off maintenance because honestly, I'm not even sure how often these DE filters are supposed to be backwashed.

The water clarity has been decent but the high pressure is making me nervous that I'm about to have a bigger problem on my hands. How often should I actually be backwashing this filter, and is there anything special I need to do after backwashing a DE system? I really don't want to mess this up and create an even bigger headache.…more
Do I Need DE in My Pool Filter? Diagnosis & Solutions
Filters Medium 45 minutes 206 👍 1

Do I Need DE in My Pool Filter? Diagnosis & Solutions

I turned to three different pool techs about my 2019 Pentair FNS Plus cartridge system and got three completely different answers about adding DE. My kids spend hours in the pool every day during summer, and I want to make sure the water is as clean and safe as possible for them.

I'm honestly not even 100% sure what type of filter system we have - the previous homeowner left some DE powder in the pool shed, but I don't know if I'm supposed to be using it or not. How do I figure out if my specific filter needs DE, and if so, what's the right way to add it? I just want crystal clear water that's safe for my children to swim in every day.…more
Can I Leave Pool Filter Outside for Winter? Storage Guide
Filters Medium 45 minutes 250 👍

Can I Leave Pool Filter Outside for Winter? Storage Guide

This Hayward sand filter is sitting in my backyard and the pool store warned me the housing will crack if I leave it outside this winter. They're saying I absolutely MUST bring my filter inside and store it properly or it'll crack from freezing water. Is this just another upsell, or will my filter actually get damaged if I leave it outside during winter?

I'm in a climate that gets below freezing, and I'm trying to handle as much of the winterization myself as possible. The pool store quoted me $200 just for filter removal and storage! Can I really not just drain it well and leave it in place, or am I risking expensive damage? Looking for honest advice from people who've actually dealt with this.…more
Can You Vacuum Pool on Backwash? Proper Filter Settings
Maintenance Easy 45 minutes 198 👍 1

Can You Vacuum Pool on Backwash? Proper Filter Settings

Already tried everything but my pool filter clogs every time I vacuum, the water won't clear up, AND I can't figure out the right filter setting.
Should I have it on backwash while I vacuum, or use a different setting? Don't want to mess anything up.…more
Do I Need to Backwash My Pool Filter? Complete Guide
Filters Easy 10 minutes 245 👍

Do I Need to Backwash My Pool Filter? Complete Guide

Our pool filter pressure started as slightly higher gauge readings last month but now it's climbing so dangerously high I'm wondering what specific indicators tell me when to backwash.

What are the key signs I should monitor to determine when backwashing is necessary? Are there different procedures for different types of filters, or does the same process apply across all filtration systems?…more
How Long Do Pool Cartridge Filters Last? Replacement Guide
Filters Easy 15 minutes 470 👍 1

How Long Do Pool Cartridge Filters Last? Replacement Guide

Between my pool store saying 2-4 weeks and everything online claiming 2-4 months, I'm completely lost on when to actually replace my cartridge filter. How long between cleanings? When do I throw them out completely and buy new ones?

Running my pool daily during summer. Want to stay on top of maintenance but not waste money replacing too early.…more
How to Deep Clean a Pool Cartridge Filter
Filters Easy 2–3 hours (including soak time) 12 👍 1

How to Deep Clean a Pool Cartridge Filter

Nobody tells you how fast sunscreen and body oils can clog up a cartridge filter. My pressure gauge has been creeping up steadily, and when I finally pulled the cartridges out, the pleats looked genuinely gunky — not just dusty, but greasy and discolored even after I sprayed them down with the garden hose. A neighbor suggested soaking them in Simple Green since it's a degreaser, but I'm nervous about it foaming up my pool water if I don't rinse it out completely.

My current routine is basically just a garden hose spray-down every few weeks, but clearly that's not cutting through the oils and sunscreen buildup. I want to know the full proper process — the right way to hose them down, whether Simple Green or a dedicated pool filter cleaner is the smarter choice, how to handle mineral scale versus greasy residue differently, and how often a real deep clean should actually happen.

Also, someone in my neighborhood group mentioned using a pressure washer to blast the pleats clean, and now I'm second-guessing everything. What should I absolutely avoid doing, and what's the correct method from start to finish?…more

Pool Saved to Cloud

Your sync code (use this to load your profile on another device):

Write this down! There is no way to recover it if you lose it and clear your browser.
Pool Calculator Free all-in-one dosing tool